Range hood with goods fleeing prevention function and goods fleeing prevention method of range hood

Abstract

The invention discloses a range hood with a goods fleeing prevention function and a goods fleeing prevention method for the range hood, the range hood is provided with an MCU chip, the range hood is further provided with a first remote communication module, a storage module and a first WiFi module, and the first remote communication module, the storage module and the first WiFi module are all electrically connected with the MCU chip; an SN code is stored in the storage module, the storage module is provided with a one-time writing unit which cannot be erased, a sales code is stored in the one-time writing unit, and the MCU chip is in communication connection with the router through the first WiFi module, reads the IP address of the router and sends the read IP address to the first WiFi module. The MCU chip transmits the read IP address, the SN code stored in the storage module and the sales code stored in the one-time writing unit back to the server through the first remote communication module; according to the invention, the channel conflict behavior of the range hood can be found in time, and the channel conflict phenomenon of the range hood can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of preventing goods from being mixed with other goods in range hoods, and in particular relates to a range hood with a function of preventing goods from being mixed with other goods and a method for preventing goods from being mixed with other goods in range hoods. Background Art

[0002] Cross-selling refers to the situation where dealers disregard the distribution agreement and the long-term interests of the manufacturer, and take advantage of the price differences caused by factors such as different economic levels in different regions to sell products across regions, transporting range hoods from low-priced areas to high-priced areas for sale in order to obtain higher sales profits. In the range hood industry, cross-selling occurs from time to time, causing many problems for manufacturers, dealers and consumers.

[0003] For manufacturers, mixed-product sales of range hoods will disrupt the market price system and affect the brand image. For example, due to mixed-product sales, the prices of the same model of range hoods in the same region vary greatly, which will cause consumers to distrust the brand and reduce brand loyalty. At the same time, mixed-product sales will also affect manufacturers' ability to control the market, making it difficult to accurately understand the market demand and sales situation in various regions, thus affecting the formulation of production plans and market strategies.

[0004] For dealers, mixed sales of range hoods will lead to intensified market competition and reduced profit margins. If a large number of range hood products flood into a region, the market will be oversupplied, prices will inevitably fall, and dealers' profits will be affected.

[0005] For consumers, counterfeit range hoods may cause some quality and after-sales problems. Since some counterfeit range hoods may not be sold through formal channels, consumers may not be able to enjoy normal after-sales service after purchase. Moreover, if there are quality problems with the range hood, it is difficult for consumers to find an effective solution, which will also affect the brand image of the range hood.

[0006] Therefore, the problem of mixed goods in range hoods will seriously affect the healthy development of the range hood industry. Therefore, the applicant proposes a range hood with anti-mixed goods function and a method for preventing mixed goods in range hoods to reduce the occurrence of mixed goods in range hoods. Summary of the invention

[0007] The object of the present invention is to provide a range hood with an anti-mixing function and a method for preventing mix-ups in range hoods, so as to reduce the occurrence of mix-ups in range hoods.

[0008] The present invention is implemented as follows: According to the first aspect of the present invention, the present invention provides a range hood with an anti-counterfeiting function, the range hood having an MCU chip, the range hood also having a first remote communication module, a storage module and a first WiFi module, the first remote communication module, the storage module and the first WiFi module are all electrically connected to the MCU chip; an SN code is stored in the storage module, the storage module has a non-erasable one-time writing unit, a sales code is stored in the one-time writing unit, the MCU chip is connected to a router through the first WiFi module for communication, and reads the IP address of the router, the MCU chip transmits the read IP address, the SN code stored in the storage module and the sales code stored in the one-time writing unit back to the server through the first remote communication module.

[0009] Furthermore, the SN code corresponds to the cigarette machine one by one, the sales code corresponds to one or more cigarette machines, and the sales code corresponds to one or more geographical addresses at the county level and above; the sales code is written into the disposable writing unit before packaging after the cigarette machine inspection is completed and confirmed to be intact.

[0010] Furthermore, a visible sales code is set at a fixed position on the range hood, the visible sales code is a QR code, and the geographical address range corresponding to the visible sales code is entered into the server; the visible sales code is printed or pasted at a fixed position on the range hood after the range hood inspection is completed and it is confirmed that the range hood is in good condition.

[0011] According to a second aspect of the present invention, the present invention provides a method for preventing mixed goods in a range hood, using the range hood, comprising the following steps:

[0012] S000, storing the SN code in the storage module of the range hood, writing and entering the sales code in the one-time writing unit of the storage module of the range hood, and storing the SN code, sales code and geographical address correspondence table in the server;

[0013] S100, after the range hood is installed, the MCU chip of the range hood is connected to the router through the first WiFi module and reads the IP address of the router. The MCU chip of the range hood reads the SN code and sales code stored in the range hood, and transmits the read IP address, SN code and sales code back to the server through the first remote communication module;

[0014] S200, the server queries the geographical address corresponding to the received IP address;

[0015] S300, the server compares the received SN code, sales code and queried geographical address with the internally stored SN code, sales code and geographical address correspondence table;

[0016] S400: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

[0017] Furthermore, in the step S00, the production process of the range hood includes an assembly process, a testing process and a packaging process. When the test is completed and the range hood is in good condition, the sales code corresponding to the range hood is written into the one-time writing unit of the range hood storage module, and then the packaging process is immediately entered to package the range hood; in the step S400, when the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has a mixed product behavior, where 200≤M≤1000; the server collects the IP address of the current range hood, the SN code of the range hood, the sales code of the range hood and the contract information corresponding to the sales code, and sends them to the relevant departments as litigation evidence.

[0018] According to a third aspect of the present invention, a method for preventing the contraband goods in a range hood is provided, using the range hood described above, the range hood having a first near-ground communication module, the first near-ground communication module being electrically connected to an MCU chip; the method for preventing the contraband goods in a range hood comprises the following steps:

[0019] Step 00, store the SN code in the storage module of the range hood, write and enter the sales code in the one-time writing unit of the storage module of the range hood, and store the SN code, sales code and geographical address correspondence table in the server;

[0020] Step 10: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, which has a third near-ground communication module, a third remote communication module, and a third WiFi module. The installation terminal is connected to the first near-ground communication module of the range hood through the third near-ground communication module, and then connected to the MCU chip of the range hood, and reads the SN code stored in the storage module and the sales code stored in the one-time writing unit of the range hood through the MCU chip. After the range hood installation personnel completes the installation of the range hood, they connect to the router through the third WiFi module of the installation terminal, read the IP address of the router, and transmit the read IP address, SN code, and sales code back to the server through the third remote communication module through the installation terminal;

[0021] Step 20, the server queries the geographical address corresponding to the received IP address;

[0022] Step 30: The server compares the received SN code, sales code and the queried geographical address with the internally stored SN code, sales code and geographical address correspondence table;

[0023] Step 40: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

[0024] According to a fourth aspect of the present invention, the present invention provides a method for preventing mixed goods in a range hood, using the range hood, comprising the following steps:

[0025] Step 000: Set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store a corresponding table of SN code, sales code and geographical address in the server;

[0026] Step 100: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, which has a third remote communication module, a camera module, and a third geographic location positioning module. After the range hood installation personnel completes the installation of the range hood, they use the camera module of the installation terminal to take a picture of the visible SN code and a picture of the visible sales code, and use the third geographic location positioning module of the installation terminal to locate the geographic address of the installed range hood. Then, they use the third remote communication module of the installation terminal to transmit the visible SN code picture, the visible sales code picture, and the geographic address located by the third geographic location positioning module back to the server;

[0027] Step 200: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood;

[0028] Step 300: The server compares the identified SN code, sales code and received geographical address with the corresponding table of SN code, sales code and geographical address stored internally;

[0029] Step 400: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

[0030] According to a fifth aspect of the present invention, the present invention provides a method for preventing mixed goods in a range hood, using the range hood, comprising the following steps:

[0031] Step 0000: set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store a corresponding table of SN code, sales code and geographical address in the server;

[0032] Step 1000: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, and the installation terminal has a third remote communication module, a camera module, and a third WiFi module; after the range hood installation personnel completes the installation of the range hood, they take pictures of the visible SN code and the visible sales code through the camera module of the installation terminal, connect to the router through the third WiFi module of the installation terminal, and read the IP address of the router, and transmit the visible SN code picture, the visible sales code picture, and the read IP address back to the server through the third remote communication module of the installation terminal;

[0033] Step 2000: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood; the server queries the geographic address corresponding to the received IP address;

[0034] Step 3000: The server compares the identified SN code, sales code and queried geographic address with the corresponding table of SN codes, sales codes and geographic addresses stored internally;

[0035] Step 4000: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

[0036] Furthermore, the range hood installer is bound to an installation terminal, and the installation terminal has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographical address. When the installation terminal returns the read SN code to the server, it also returns its identity code.

[0037] Furthermore, the installation terminal has a face recognition module, and the face recognition module is connected to the server through a third remote communication module. The server stores a face image of the range hood installer bound to the installation terminal. The range hood installer first unlocks the return permission instruction through the face recognition module, and then can return the read SN code of the range hood to the server through the installation terminal; when unlocking the return permission instruction, the face recognition module captures the installer's face dynamic image, and the installation terminal returns the captured face dynamic image and its identity code to the server, the server compares the received face dynamic image with the face image of the range hood installer bound to the installation terminal corresponding to the received identity code, and when the comparison results are consistent, sends a return permission instruction to the installation terminal, and the installation terminal unlocks the return permission instruction when receiving the return permission instruction.

[0038] The present invention provides a range hood with a function of preventing cross-selling of goods, and also provides a variety of effective methods for preventing cross-selling of goods in range hoods, which can timely detect cross-selling of goods in range hoods and help reduce the occurrence of cross-selling of goods in range hoods. Other advantages of the present invention are described in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a block diagram of the electric control structure of the range hood with anti-mixing function provided in Example 1 of the present invention;

[0040] Figure 2 is a block diagram of the electrical control structure of the intelligent controller provided in Embodiment 2 of the present invention;

[0041] Figure 3 is a block diagram of the electric control structure of the APP module of the intelligent controller provided in Example 2 of the present invention;

[0042] Figure 4 is a block diagram of the electric control structure of the installation terminal provided in Embodiment 3 of the present invention;

[0043] Figure 5 is a flow chart of the method for preventing cross-selling of goods in a range hood provided in Embodiment 4 of the present invention;

[0044] Figure 6 is a flow chart of the method for preventing cross-selling of goods in a range hood provided in Embodiment 5 of the present invention;

[0045] Figure 7 is a flow chart of the method for preventing cross-selling of goods in a range hood provided in Example 6 of the present invention;

[0046] Figure 8 is a flow chart of a method for preventing cross-selling of goods in a range hood provided in Embodiment 7 of the present invention;

[0047] Fig. 9 is a flow chart of a method for preventing cross-selling of goods in a range hood provided in Embodiment 8 of the present invention;

[0048] Fig.10 is a flow chart of a method for preventing cross-selling of goods in a range hood provided in Embodiment 9 of the present invention;

[0049] Fig.11 It is a flow chart of the method for preventing cross-selling of goods in range hoods provided in Example 10 of the present invention. DETAILED DESCRIPTION

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0052] Example 1

[0053] This embodiment provides a range hood with a function of preventing mixed goods. Figure 1 As shown, the range hood has a range hood housing, and a narrow and long air inlet and a smoke exhaust port are arranged on the range hood housing. A smoke exhaust fan, an MCU chip, a first remote communication module, a storage module and a first WiFi module are arranged in the range hood housing, and the smoke exhaust fan, the first remote communication module, the storage module and the first WiFi module are all electrically connected to the MCU chip. An SN code is stored in the storage module, and the SN code corresponds to the range hood one-to-one, that is, each range hood has a unique corresponding SN code. The SN code includes the production date, model, place of origin, production number and other information of the range hood, which is convenient for tracing when the range hood has product quality problems. The SN code of each range hood is stored in the server of the range hood manufacturer. In addition to being set in the storage module, the SN code can also be printed on the range hood housing, or made into a label printed with the SN code, and the label is pasted on a specific position of the range hood housing.

[0054] like Figure 1 As shown, the storage module of the range hood has a non-erasable one-time writing unit, in which the sales code is stored, so that the sales code cannot be changed. The sales code can be read by the MCU chip of the range hood. The sales code usually corresponds to a sales contract. One sales contract corresponds to one or more sales codes. Each sales code corresponds to one or more range hoods. Each sales code corresponds to a sales area. Each sales area corresponds to one or more county-level and above geographical addresses. According to the contract, in order to prevent mixed goods, each range hood corresponding to each sales code can only be sold in the sales area corresponding to the sales code. The sales code, the SN code corresponding to the sales code, and the geographical address corresponding to the sales code are stored in the server of the range hood manufacturer to form a correspondence table of SN code, sales code and geographical address.

[0055] The production process of the range hood includes assembly process, testing process and packaging process. When the test is completed and the range hood is in good condition, the sales code corresponding to the range hood is written into the one-time writing unit of the range hood storage module, and then the packaging process is immediately entered to package the range hood. This can prevent the seller from reading the sales code of the range hood.

[0056] In some exemplary embodiments, a visible sales code is set at a fixed position on the housing of the range hood. The visible sales code is a QR code. The geographical address range corresponding to the visible sales code is entered into the server. The user can scan the sales code through a smart phone or the smart controller of the range hood to obtain the geographical address range corresponding to it. When the user's home address does not match the geographical address range obtained by scanning the sales code, the user will know that the range hood is a counterfeit product and can call the after-sales service phone number of the range hood manufacturer to provide feedback on the counterfeit behavior to protect their after-sales rights. If the user reports the counterfeit behavior of the range hood within a period of time after the range hood is installed, such as within 3 months, even if the counterfeit range hood does not have the corresponding after-sales service, the range hood manufacturer will add the corresponding after-sales service for the user to encourage the user to actively provide feedback on the counterfeit behavior. The visible sales code is also printed or pasted at a fixed position on the range hood before the packaging process after the test process is completed and the range hood is confirmed to be intact, to prevent the seller from obtaining the visible sales code.

[0057] The MCU chip of the range hood communicates with the router through the first WiFi module and reads the IP address of the router. The MCU chip transmits the read IP address, the SN code stored in the storage module, and the sales code stored in the one-time writing unit back to the server through the first remote communication module. The module with communication function in the first remote communication module can be the first WiFi module, or any one or more of the GPRS communication module, 4G communication module, and 5G communication module.

[0058] In some exemplary embodiments, Figure 1 As shown, the range hood has a first near-ground communication module, which is electrically connected to the MCU chip. The first near-ground communication module can be a Bluetooth chip, so that the range hood can communicate with a smart device with a near-ground communication function through its first near-ground communication module, and then connect to the server of the range hood manufacturer through the remote communication module of the smart device, and transmit the IP address, the SN code stored in the storage module, and the sales code stored in the one-time writing unit back to the server.

[0059] The server can query the geographical address corresponding to the received IP address online, and compare the received SN code, sales code and the queried geographical address with the corresponding table of SN code, sales code and geographical address stored internally. When the comparison results of the three are inconsistent, the server generates a mixed goods behavior prompt information. In this way, the anti-mixed goods function of the range hood provided by this embodiment can be realized.

[0060] Example 2

[0061] This embodiment provides an intelligent controller for controlling a range hood, such as Figure 2As shown, the intelligent controller includes a control module, a second near-ground communication module, a second remote communication module and a second positioning module. The control module includes a control circuit board and a control chip installed on the circuit board. The second near-ground communication module, the second remote communication module and the second positioning module are all electrically connected to the control module. The second remote communication module is any one or more of a GPRS communication module, a 4G communication module and a 5G communication module. The second near-ground communication module can be a Bluetooth chip. The intelligent controller is connected to the first near-ground communication module of the range hood through the second near-ground communication module, and then connected to the MCU chip of the range hood, and reads the SN code and sales code stored in the storage module of the range hood through the MCU chip.

[0062] In some exemplary embodiments, the second positioning module of the intelligent controller includes a second geographical location positioning module, and the second geographical location positioning module has a GPS chip or a Beidou chip. The intelligent controller can locate its own geographical address through its second geographical location positioning module, that is, locate the geographical address of the installation location of the range hood. The intelligent controller transmits the geographical address of the installation location of the range hood, the SN code and the sales code stored in the storage module of the range hood to the server of the range hood manufacturer through the second remote communication module. This is a way of transmitting data back to the server. In this way, the server can directly obtain the geographical address of the installation location of the range hood.

[0063] In some exemplary embodiments, the second positioning module further includes a second WiFi module, which is also electrically connected to the control module. The intelligent controller is connected to the router through the second WiFi module and reads the IP address of the router. The intelligent controller transmits the read IP address, the SN code and the sales code stored in the storage module of the range hood to the server through the second remote communication module. This is another way to transmit data back to the server. In this way, the server can query the geographical address corresponding to the received IP address online, and then obtain the geographical address of the installation location of the range hood.

[0064] In some exemplary embodiments, Figure 2 and Figure 3 As shown, the intelligent controller also has a second display module and an APP module. The APP module is bound to the range hood. The APP module has a range hood control unit, a range hood operating parameter setting unit, and a range hood operating status unit. The range hood control unit can control the start and stop of the range hood and the operating gear. The range hood operating parameter setting unit can set the start and stop conditions, shutdown delay time, and start gear of the range hood. The range hood operating status unit has a range hood operating status page. On the range hood operating status page, various operating parameters of the range hood can be viewed. The operating parameters include but are not limited to operating gear, operating power, smoke concentration, and environmental quality parameters. In this way, the intelligent controller can display the operating status of the range hood, set the operating parameters of the range hood, and control the operation of the range hood, so that users can operate the range hood more conveniently.

[0065] Example 3

[0066] This embodiment provides an installation terminal. For the installation team of the range hood manufacturer, each installer in the installation team is equipped with an installation terminal, and each installer in the installation team is a range hood installer designated by the range hood manufacturer.

[0067] The electrical control structure of the installation terminal is as follows Figure 4 As shown, the installation terminal has a main control circuit board, and the main control circuit board is provided with a main control MCU chip. The installation terminal also has a third near-ground communication module, a third remote communication module and a third WiFi module. The third near-ground communication module can be a Bluetooth chip. The third near-ground communication module, the third remote communication module and the third WiFi module of the installation terminal are all electrically connected to the main control circuit board. The installation terminal is connected to the first near-ground communication module of the range hood through the third near-ground communication module, and then connected to the MCU chip of the range hood, and the SN code and sales code stored in the storage module of the range hood are read through the MCU chip. After the range hood installer completes the installation of the range hood, the third WiFi module of the installation terminal is connected to the router through the third WiFi module of the installation terminal, and the IP address of the router is read. The installation terminal transmits the read IP address, the SN code and sales code stored in the storage module of the range hood back to the server of the range hood manufacturer through the third remote communication module. The server can query the geographical address corresponding to the received IP address online, and compare the received SN code, sales code and the queried geographical address with the corresponding table of SN code, sales code and geographical address stored in its internal storage. When the comparison results of the three are inconsistent, the server generates a reminder message of the behavior of mixed goods.

[0068] In some exemplary embodiments, Figure 4 As shown, the installation terminal has a third geographic location positioning module, and the third geographic location positioning module is electrically connected to the main control circuit board. The third geographic location positioning module has a GPS chip or a Beidou chip. The third geographic location positioning module can locate the geographic address of the installation terminal, that is, the geographic address of the installation location of the range hood installed by the person bound to the installation terminal. The installation person operates the installation terminal to transmit the positioning result of the third geographic location positioning module to the server of the range hood manufacturer, so that the server can directly obtain the geographic address of the installation location of the range hood.

[0069] The range hood installer is bound to the installation terminal, and the installation terminal has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographic address. When the installation terminal returns the read SN code and sales code to the server, it also returns its identity code so that the server can query and obtain the geographic address corresponding to the installation terminal, which can then be compared with the geographic address of the installation terminal located by the third geographic location positioning module. When the two are inconsistent, it means that the installer has installed across regions, or the installer has fixedly returned a false address.

[0070] In some exemplary embodiments, Figure 4 As shown, the installation terminal has a face recognition module, which is connected to the server through the third remote communication module. The server stores the face image of the range hood installer bound to the installation terminal. The range hood installer first unlocks the return permission instruction through the face recognition module, and then can return the SN code and sales code of the range hood to the server through the installation terminal. When unlocking the return permission instruction, the face recognition module captures the dynamic face image of the installer, and the installation terminal returns the captured dynamic face image and its identity code to the server. The server compares the received dynamic face image with the face image of the range hood installer bound to the installation terminal corresponding to the received identity code. When the comparison results are consistent, the return permission instruction is sent to the installation terminal. When the installation terminal receives the return permission instruction, it unlocks the return permission instruction. This can effectively avoid the problem of the installation terminal being used by others.

[0071] In some exemplary embodiments, Figure 4 As shown, the installation terminal has a camera module and a third geographic location positioning module, and the camera module and the third geographic location positioning module are both electrically connected to the main control circuit board. For a range hood with a visible SN code and a visible sales code, after the range hood installer completes the installation of the range hood, he or she takes a picture of the visible SN code and the visible sales code through the camera module of the installation terminal, locates the geographical address of the installation location of the installed range hood through the third geographic location positioning module of the installation terminal, and then transmits the visible SN code picture, the visible sales code picture and the geographical address located by the third geographic location positioning module back to the server through the third remote communication module of the installation terminal. The server identifies the SN code picture and the visible sales code picture to obtain the SN code and sales code of the range hood. The server compares the identified SN code, sales code and received geographical address with the corresponding table of SN code, sales code and geographical address stored in the server. When the comparison results of the three are inconsistent, the server generates a reminder message of mixed goods behavior. After the range hood is installed, the range hood installer can also upload installation information such as the installation height of the range hood and the pictures of the range hood installation to the server through the installation terminal.

[0072] Example 4

[0073] This embodiment provides a method for preventing cross-selling of goods in a range hood. Figure 5 As shown, the following steps are included:

[0074] S0. Store the SN code and sales code in the cigarette machine, and store the SN code, sales code and geographical address correspondence table in the server. The SN code corresponds to the cigarette machine one by one, the sales code corresponds to one or more cigarette machines, and the sales code corresponds to one or more geographical addresses at or above the county level.

[0075] S1. Obtain the IP address of the installation location of the range hood, the SN code of the range hood, and the sales code, and transmit the obtained IP address, SN code, and sales code back to the server. There are many ways to obtain the IP address of the installation location of the range hood. For example, for a range hood with a first WiFi module, the MCU chip of the range hood communicates with the router through the first WiFi module and reads the IP address of the router; for another example, for a range hood without a first WiFi module, the range hood communicates with the intelligent controller with a second WiFi module through a near-ground communication module, and the intelligent controller communicates with the router through the second WiFi module and reads the IP address of the router. The intelligent controller transmits the read IP address, the SN code and sales code stored in the storage module of the range hood back to the server through the second remote communication module.

[0076] S2. The server queries the geographical address corresponding to the received IP address.

[0077] S3. The server compares the received SN code, sales code and queried geographic address with its internally stored SN code, sales code and geographic address correspondence table.

[0078] S4. When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods behavior, where 200≤M≤1000.

[0079] When there is cross-selling, the server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. The contract information includes but is not limited to the sales amount, responsible seller, seller deposit, seller commitment terms, sales geographical address range, etc.

[0080] The method for preventing cross-selling of goods in range hoods provided in this embodiment is applicable to the situation where any one of the range hood, intelligent controller, and installation terminal can obtain the IP address of the range hood installation location. The IP address of the range hood installation location is first obtained, and then the IP address of the range hood installation location is transmitted back to the server. Finally, the server goes online to query the geographical address corresponding to the received IP address, and then obtains the geographical address of the range hood installation location.

[0081] Example 5

[0082] This embodiment provides a method for preventing cross-selling of goods in a range hood. Figure 6 As shown, the following steps are included:

[0083] S00. SN codes are stored in cigarette machines. When cigarette machines are transported by express companies, the express companies generate transportation codes, and a corresponding table of SN codes and transportation codes is stored in the server. SN codes correspond to cigarette machines one by one, transportation codes correspond to one or more cigarette machines, transportation codes correspond to one or more county-level and above geographical addresses; or transportation codes correspond to one or more warehouses, and warehouses correspond to one or more county-level and above geographical addresses.

[0084] S10. The server connects to the express company that generates the transport code, obtains one or more destinations corresponding to each transport code, writes into a corresponding table of SN codes and transport codes, and establishes a mapping relationship between SN codes and destinations.

[0085] S20. After the range hood is installed, the SN code and installation location address of the range hood are obtained, and the SN code and installation location address of the range hood are transmitted back to the server.

[0086] S30. The server obtains the geographical address of the range hood installation location based on the received installation location address, and compares the received SN code of the range hood and the geographical address of the range hood installation location with the mapping relationship between the SN code and the destination established by the server. The installation location address is the geographical address of the range hood installation location / or the IP address of the range hood installation location. When the installation location address is the geographical address of the range hood installation location, the server directly obtains the geographical address of the range hood installation location; when the installation location address is the IP address of the range hood installation location, the server queries the geographical address corresponding to the received IP address online, and then obtains the geographical address of the range hood installation location.

[0087] S40, when the geographical address of the installation location corresponding to the range hood with the same SN code is inconsistent with the destination stored in the server, the server generates a warning message of mixed goods behavior. When the geographical address corresponding to the IP address of the range hood installation location is inconsistent with the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods behavior, where 200≤M≤1000.

[0088] The method for preventing cross-selling of range hoods provided in this embodiment is applicable to preventing cross-selling of range hoods without sales contracts and sales codes. The geographical address of the range hood destination is obtained by tracking the logistics of the range hood, and the address is stored in the server to establish a mapping relationship between the SN code and the destination. After the range hood is installed, the installation address of the range hood is sent back to the server, so that the actual installation address of the range hood and the destination address of the range hood can be compared. When the two are inconsistent and the geographical distance difference exceeds a preset value, it can be determined that cross-selling has occurred.

[0089] Example 6

[0090] This embodiment provides a method for preventing cross-selling of goods in a range hood. Figure 7 As shown, the following steps are included:

[0091] S000, store the SN code in the storage module of the range hood, write the sales code in the one-time writing unit of the storage module of the range hood, and store the SN code, sales code and geographical address correspondence table in the server. The production process of the range hood includes assembly process, testing process and packaging process. When the test is completed and the range hood is intact, the sales code corresponding to the range hood is written into the one-time writing unit of the storage module of the range hood, and then immediately enter the packaging process to package the range hood.

[0092] S100, after the range hood is installed, the MCU chip of the range hood is connected to the router through the first WiFi module and reads the IP address of the router. The MCU chip of the range hood reads the SN code and sales code stored in the range hood, and transmits the read IP address, SN code and sales code back to the server through the first remote communication module;

[0093] S200: The server queries the geographical address corresponding to the received IP address.

[0094] S300. The server compares the received SN code, sales code and queried geographic address with the corresponding table of SN code, sales code and geographic address stored internally.

[0095] S400. When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods, where 200≤M≤1000. The server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. Contract information includes but is not limited to sales amount, responsible seller, seller deposit status, seller commitment terms, sales geographical address range, etc.

[0096] The method for preventing the cross-selling of goods in the range hood provided in this embodiment writes the sales code into the one-time writing unit of the storage module of the range hood, which has the advantage of being unable to be rewritten. The sales code corresponding to the range hood is written into the one-time writing unit after the time test process and before the packaging process, and the packaging process is immediately entered after the sales code is written to package the range hood, so as to prevent the seller from reading the sales code of the range hood.

[0097] Example 7

[0098] This embodiment provides a method for preventing cross-selling of goods in a range hood. Figure 8 As shown, the following steps are included:

[0099] Step 00, store the SN code in the storage module of the range hood, write the sales code in the one-time writing unit of the storage module of the range hood, and store the SN code, sales code and geographical address correspondence table in the server. The production process of the range hood includes assembly process, testing process and packaging process. When the test is completed and the range hood is intact, the sales code corresponding to the range hood is written into the one-time writing unit of the storage module of the range hood, and then immediately enter the packaging process to package the range hood.

[0100] Step 10: The range hood installation is performed by a designated range hood installation personnel. The range hood installation personnel has an installation terminal, which has a third near-ground communication module, a third remote communication module, and a third WiFi module. The installation terminal is connected to the first near-ground communication module of the range hood through the third near-ground communication module, and then connected to the MCU chip of the range hood, and reads the SN code stored in the storage module of the range hood and the sales code stored in the one-time writing unit through the MCU chip. After the range hood installation personnel completes the installation of the range hood, they communicate with the router through the third WiFi module of the installation terminal and read the IP address of the router. The installation terminal transmits the read IP address, SN code, and sales code back to the server through the third remote communication module. The range hood installation personnel binds the installation terminal, and the installation terminal has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographical address. When the installation terminal transmits the read SN code back to the server, it also transmits its identity code.

[0101] Step 20: The server queries the geographic address corresponding to the received IP address.

[0102] Step 30: The server compares the received SN code, sales code and queried geographic address with its internally stored SN code, sales code and geographic address correspondence table.

[0103] Step 40: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods behavior, where 200≤M≤1000.

[0104] The server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. The contract information includes but is not limited to the sales amount, responsible seller, seller deposit, seller commitment terms, sales geographical address range, etc.

[0105] In the range hood anti-mixing method provided in this embodiment, the range hood manufacturer's server obtains the IP address of the range hood installation location by having the designated range hood installer transmit it back through his / her bound installation terminal. This is suitable for situations where the range hood is installed by the range hood manufacturer's own installation team.

[0106] Example 8

[0107] This embodiment provides a method for preventing cross-selling of goods in a range hood. Fig. 9 As shown, the following steps are included:

[0108] Step 000, set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store the SN code, sales code and geographical address correspondence table in the server.

[0109] Step 100: The range hood installation is performed by a designated range hood installer. The range hood installer has an installation terminal, which has a third remote communication module, a camera module, and a third geographic location module. After the range hood installer completes the installation, he or she takes a picture of the visible SN code and a picture of the visible sales code through the camera module of the installation terminal, locates the geographic address of the installed range hood through the third geographic location module of the installation terminal, and then transmits the visible SN code picture, the visible sales code picture, and the geographic address located by the third geographic location module to the server through the third remote communication module of the installation terminal. The range hood installer binds the installation terminal, which has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographic address. When the installation terminal transmits the read SN code back to the server, it also transmits its identity code.

[0110] Step 200: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood.

[0111] Step 300: The server compares the identified SN code, sales code and received geographic address with its internally stored correspondence table of SN codes, sales codes and geographic addresses.

[0112] Step 400: When the comparison results of the three are inconsistent, the server generates a warning message for mixed goods. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods, where 200≤M≤1000.

[0113] The server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. The contract information includes but is not limited to the sales amount, responsible seller, seller deposit, seller commitment terms, sales geographical address range, etc.

[0114] In the method for preventing counterfeiting of goods in range hoods provided in this embodiment, the way in which the server of the range hood manufacturer obtains the SN code and sales code of the installed range hood is by taking a picture - sending back the picture - identifying the picture, which is suitable for the situation where the installation terminal cannot read the SN code and sales code stored in the storage module of the range hood.

[0115] Example 9

[0116] This embodiment provides a method for preventing cross-selling of goods in a range hood. Fig.10 As shown, the following steps are included:

[0117] Step 0000, set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store the SN code, sales code and geographical address correspondence table in the server.

[0118] Step 1000: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, which has a third remote communication module, a camera module, and a third WiFi module. After the range hood installation personnel completes the installation of the range hood, they use the camera module of the installation terminal to take pictures of the visible SN code and the visible sales code, connect to the router through the third WiFi module of the installation terminal, and read the IP address of the router. The visible SN code, the visible sales code, and the read IP address are transmitted back to the server through the third remote communication module of the installation terminal. The range hood installation personnel binds the installation terminal, which has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographical address. When the installation terminal transmits the read SN code back to the server, it also transmits its identity code.

[0119] Step 2000: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood; the server queries the geographic address corresponding to the received IP address.

[0120] Step 3000: The server compares the identified SN code, sales code and queried geographic address with its internally stored SN code, sales code and geographic address correspondence table.

[0121] Step 4000: When the comparison results of the three are inconsistent, the server generates a warning message for mixed goods. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods, where 200≤M≤1000.

[0122] The server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. The contract information includes but is not limited to the sales amount, responsible seller, seller deposit, seller commitment terms, sales geographical address range, etc.

[0123] The difference between the method for preventing cross-selling of goods in range hoods provided in this embodiment and the method for preventing cross-selling of goods in range hoods provided in Embodiment 8 is that the server obtains the geographical address of the installation location of the range hood in different ways. In Embodiment 8, the installation terminal has a third geographical location positioning module, and the installation terminal can directly locate the geographical address of the installation location of the range hood through the third geographical location positioning module, so the server can directly obtain the geographical address of the installation location of the range hood.

[0124] In Example 9, the installation terminal has a third WiFi module, and the installation terminal is connected to the router through the third WiFi module, reads the IP address of the router, and transmits the read IP address back to the server. At this time, the server needs to query the Internet to obtain the geographical address of the range hood installation location corresponding to the IP address.

[0125] Example 10

[0126] This embodiment provides a method for preventing cross-selling of goods in a range hood. Fig.11 As shown, the following steps are included:

[0127] Step 0: Store the SN code and sales code in the storage module of the range hood, and store the SN code, sales code and geographic address correspondence table in the server.

[0128] Step 1. After the range hood is installed, it communicates and binds with the intelligent controller. The intelligent controller reads the SN code and sales code stored in the storage module of the range hood. The intelligent controller locates the address of the installation location of the range hood through the second positioning module, and transmits the address of the installation location of the range hood, the SN code and sales code stored in the storage module of the range hood to the server through the second remote communication module.

[0129] Step 2: The server determines the geographical address of the range hood installation location based on the received address of the range hood installation location.

[0130] Step 3: The server compares the received SN code, sales code and geographical address of the range hood installation location with its internally stored SN code, sales code and geographical address correspondence table.

[0131] Step 4. When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods. When the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods, where 200≤M≤1000. The server collects the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code, and sends it to the relevant departments as litigation evidence. Contract information includes but is not limited to sales amount, responsible seller, seller deposit status, seller commitment terms, sales geographical address range, etc.

[0132] In some exemplary embodiments, in the above step 1, the intelligent controller is connected to the router through the second WiFi module and reads the IP address of the router. The intelligent controller transmits the read IP address, the SN code and the sales code stored in the storage module of the range hood to the server through the second remote communication module. In the above step 2, the server queries the corresponding geographical address according to the received IP address.

[0133] In some exemplary embodiments, when the second positioning module is a second geographic location positioning module, in the above step 1, the intelligent controller locates the geographic address of the range hood installation location through the second geographic location positioning module, and the intelligent controller reads the SN code and sales code stored in the storage module of the range hood and transmits the located geographic address back to the server. In the above step 2, the geographic address received by the server is directly determined as the geographic address of the range hood installation location.

[0134] In the method for preventing cross-selling of goods in a range hood provided in this embodiment, the range hood and the intelligent controller form a range hood component for preventing cross-selling of goods. The range hood and the intelligent controller are connected for communication via a near-ground communication module. The range hood itself does not have the ability to obtain the geographical address and IP address of the location where it is installed, but the intelligent controller does. The intelligent controller can read the SN code and sales code stored in the range hood through the near-ground communication module, and can transmit the read SN code and sales code and the geographical address or IP address of the location where the range hood is installed to the server, so that the server can obtain sufficient data for cross-selling of goods. In the range hood component for preventing cross-selling of goods composed of the range hood and the intelligent controller, the range hood does not need to be provided with the components required to obtain the geographical address or IP address of the location where it is installed, which can reduce the cost of the range hood.

[0135] In summary, the present invention provides a range hood with an anti-cross-selling function, and also provides a variety of effective methods for preventing cross-selling of range hoods, which can timely detect cross-selling of range hoods. For range hoods with sales codes and sales contracts, when cross-selling of range hoods occurs, the range hood manufacturer's server can collect the installation address of the current range hood, the SN code of the range hood, the sales code of the range hood, and the contract information corresponding to the sales code as litigation evidence, which can effectively ensure victory and obtain compensation from dealers. At the same time, it can also identify trustworthy and untrustworthy dealers, which is convenient for the range hood manufacturer to reasonably adjust and replace cooperation partners and cooperative sales, which can effectively reduce the occurrence of cross-selling of range hoods.

[0136] For range hoods without sales contracts and sales codes, the present invention also provides a targeted method for preventing cross-selling of range hoods. The method obtains the geographical address of the range hood's destination by tracking the range hood's logistics, stores it in the server, and establishes a mapping relationship between the SN code and the destination. After the range hood is installed, the installation address of the range hood is sent back to the server, so that the actual installation address of the range hood and the address of the range hood's destination can be compared. When the two are inconsistent and the geographical distance difference exceeds a preset value, it can be determined that cross-selling has occurred. When cross-selling of range hoods occurs, the server can also collect information such as the range hood's installation address, the range hood's SN code, and the range hood's logistics destination warehouse, and then determine the person or unit responsible for causing the cross-selling of range hoods, thereby achieving the purpose of reducing the occurrence of cross-selling of range hoods.

[0137] In addition, the present invention also provides a range hood assembly with an anti-counterfeiting function. While ensuring the anti-counterfeiting function, the range hood does not need to be equipped with components required to obtain the geographic address or IP address of its installation location, which can effectively reduce the cost of the range hood.

[0138] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A range hood with anti-counterfeiting function, the range hood having an MCU chip, characterized in that: The range hood also has a first remote communication module, a storage module and a first WiFi module, and the first remote communication module, the storage module and the first WiFi module are all electrically connected to the MCU chip; the storage module stores an SN code, and the storage module has a non-erasable one-time writing unit, and the one-time writing unit stores a sales code. The MCU chip is connected to the router through the first WiFi module and reads the IP address of the router. The MCU chip transmits the read IP address, the SN code stored in the storage module and the sales code stored in the one-time writing unit back to the server through the first remote communication module.

2. The range hood according to claim 1, characterized in that: The SN code corresponds to a cigarette machine one by one, the sales code corresponds to one or more cigarette machines, and the sales code corresponds to one or more geographical addresses at the county level and above; the sales code is written into the disposable writing unit before packaging after the cigarette machine inspection is completed and confirmed to be intact.

3. The range hood according to claim 1, characterized in that: A visible sales code is set at a fixed position on the range hood. The visible sales code is a QR code, and the geographical address range corresponding to the visible sales code is entered into the server. After the range hood inspection is completed and the range hood is confirmed to be intact, the visible sales code is printed or pasted at a fixed position on the range hood.

4. A method for preventing cross-selling of goods in a range hood, using the range hood as claimed in any one of claims 1 to 3, characterized in that: The steps include: S000, storing the SN code in the storage module of the range hood, writing and entering the sales code in the one-time writing unit of the storage module of the range hood, and storing the SN code, sales code and geographical address correspondence table in the server; S100, after the range hood is installed, the MCU chip of the range hood is connected to the router through the first WiFi module and reads the IP address of the router. The MCU chip of the range hood reads the SN code and sales code stored in the range hood, and transmits the read IP address, SN code and sales code back to the server through the first remote communication module; S200, the server queries the geographical address corresponding to the received IP address; S300, the server compares the received SN code, sales code and queried geographical address with the internally stored SN code, sales code and geographical address correspondence table; S400: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

5. The method for preventing counterfeiting of goods in a range hood according to claim 4, characterized in that: In the step S00, the production process of the range hood includes an assembly process, a testing process and a packaging process. When the test is completed and the range hood is in good condition, the sales code corresponding to the range hood is written into the one-time writing unit of the range hood storage module, and then the packaging process is immediately entered to package the range hood; in the step S400, when the geographical address corresponding to the IP address of the range hood installation location does not match the geographical address corresponding to the sales code, and the geographical distance differs by M kilometers or more, it is determined that the current range hood has mixed goods, where 200≤M≤1000; the server collects the IP address of the current range hood, the SN code of the range hood, the sales code of the range hood and the contract information corresponding to the sales code, and sends them to the relevant departments as litigation evidence.

6. A method for preventing cross-selling of goods in a range hood, using the range hood as claimed in any one of claims 1 to 3, characterized in that: The range hood has a first near-ground communication module, which is electrically connected to the MCU chip; The method for preventing counterfeiting of goods from entering the range hood comprises the following steps: Step 00, store the SN code in the storage module of the range hood, write and enter the sales code in the one-time writing unit of the storage module of the range hood, and store the SN code, sales code and geographical address correspondence table in the server; Step 10: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, which has a third near-ground communication module, a third remote communication module, and a third WiFi module. The installation terminal is connected to the first near-ground communication module of the range hood through the third near-ground communication module, and then connected to the MCU chip of the range hood, and reads the SN code stored in the storage module and the sales code stored in the one-time writing unit of the range hood through the MCU chip. After the range hood installation personnel completes the installation of the range hood, they connect to the router through the third WiFi module of the installation terminal, read the IP address of the router, and transmit the read IP address, SN code, and sales code back to the server through the third remote communication module through the installation terminal; Step 20, the server queries the geographical address corresponding to the received IP address; Step 30: The server compares the received SN code, sales code and the queried geographical address with the internally stored SN code, sales code and geographical address correspondence table; Step 40: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

7. A method for preventing cross-selling of goods in a range hood, using the range hood as claimed in any one of claims 1 to 3, characterized in that: The steps include: Step 000: Set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store a corresponding table of SN code, sales code and geographical address in the server; Step 100: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, which has a third remote communication module, a camera module, and a third geographic location positioning module. After the range hood installation personnel completes the installation of the range hood, they use the camera module of the installation terminal to take a picture of the visible SN code and a picture of the visible sales code, and use the third geographic location positioning module of the installation terminal to locate the geographic address of the installed range hood. Then, they use the third remote communication module of the installation terminal to transmit the visible SN code picture, the visible sales code picture, and the geographic address located by the third geographic location positioning module back to the server; Step 200: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood; Step 300: The server compares the identified SN code, sales code and received geographical address with the corresponding table of SN code, sales code and geographical address stored internally; Step 400: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

8. A method for preventing cross-selling of goods in a range hood, using the range hood as claimed in any one of claims 1 to 3, characterized in that: The steps include: Step 0000: set a visible SN code at a fixed position on the range hood, set a visible sales code at a fixed position on the range hood, the visible sales code is a QR code, enter the geographical address range corresponding to the visible sales code into the server, and store a corresponding table of SN code, sales code and geographical address in the server; Step 1000: The range hood installation is performed by a designated range hood installation personnel, who has an installation terminal, and the installation terminal has a third remote communication module, a camera module, and a third WiFi module; after the range hood installation personnel completes the installation of the range hood, they take pictures of the visible SN code and the visible sales code through the camera module of the installation terminal, connect to the router through the third WiFi module of the installation terminal, and read the IP address of the router, and transmit the visible SN code picture, the visible sales code picture, and the read IP address back to the server through the third remote communication module of the installation terminal; Step 2000: The server identifies the SN code image and the visible sales code image to obtain the SN code and sales code of the range hood; the server queries the geographic address corresponding to the received IP address; Step 3000: The server compares the identified SN code, sales code and queried geographic address with the corresponding table of SN codes, sales codes and geographic addresses stored internally; Step 4000: When the comparison results of the three are inconsistent, the server generates a warning message of mixed goods behavior.

9. The method for preventing cross-selling of goods in a range hood according to any one of claims 6, 7 and 8, characterized in that: The range hood installer is bound to an installation terminal, and the installation terminal has a unique corresponding identity code. The server stores the identity code of each installation terminal and its corresponding geographical address. When the installation terminal returns the read SN code to the server, it also returns its identity code.

10. The method for preventing counterfeiting of goods in a range hood according to claim 9, characterized in that: The installation terminal has a face recognition module, and the face recognition module is connected to the server through a third remote communication module. The server stores the face image of the range hood installer bound to the installation terminal. The range hood installer first unlocks the return permission instruction through the face recognition module, and then can return the read SN code of the range hood to the server through the installation terminal; when unlocking the return permission instruction, the face recognition module captures the installer's face dynamic image, and the installation terminal returns the captured face dynamic image and its identity code to the server, and the server compares the received face dynamic image with the face image of the range hood installer bound to the installation terminal corresponding to the received identity code. When the comparison results are consistent, the return permission instruction is sent to the installation terminal, and the installation terminal unlocks the return permission instruction when receiving the return permission instruction.

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